级特异性内源Fe3+干扰和in situ催化用于瘤治疗与茎抑制
Jiajie Chen1,2, Yitong Wang3, Jian Huang4
1State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China.
National science review
|February 19, 2025
概括
这项研究引入了一种新的协调纳米药物,该药物向癌症干细胞 (CSC) 和批量瘤细胞. 这种纳米药物破坏了瘤的铁和氧化还原平衡,抑制了CSC并减少了瘤的生长,复发和转移.
科学领域:
- 生物医学工程 生物医学工程
- 纳米医学是一种纳米医学.
- 癌症治疗 癌症治疗
背景情况:
- 癌症干细胞 (CSCs) 驱动瘤转移和复发,抵抗常规治疗.
- 目前的治疗方法在同时向CSC和大量瘤细胞方面表现出有限的疗效.
研究的目的:
- 设计一种双作用纳米药物,以抑制CSC干细胞和消除大量瘤细胞.
- 破坏瘤铁和氧化还原平衡以改善癌症治疗.
主要方法:
- 开发了一种使用2,5-二基甲酸 (DHT) 和离子 (Zn2+) 的协调纳米药物.
- 利用DHT对Fe3+的高度亲和力来结合铁并释放 Zn2+,形成可减少的Fe-DHT复合体.
- 通过Wnt信号和FoxO3激活研究了纳米药对CSC分化的影响.
主要成果:
- 纳米医学耗尽了瘤的铁,并产生了活性氧物种 (ROS),诱导了CSC的分化.
- 结合ROS生成和Zn2+诱导的氧化应激引发了瘤细胞中的亡和铁亡.
- 在体内证明有效抑制瘤生长,复发和转移.
结论:
- 开发的纳米药物为同时向CSC和散装瘤细胞提供了一个有希望的策略.
- 这种方法为CSC丰富的恶性瘤提供了潜在的治疗剂.
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